Hooray! I love gold and haven't owned any gold accessories (other than jewelry, like you) before coming to this site, but I realized what a great "neutral" metallics could be. They really add a lot to clothing and you can wear them with almost anything.
My personal view on gold is that it looks good with any color that gold jewelry would look good with. While I don't think there is a color you absolutely cannot wear gold with (maybe grey is all I can think of--I think they are at odds a lot), gold tends to look best with shades that have a warm base. All colors come in shades with a warm base, even "cool" colors: blue (think warm aquas, turquoise, more vibrant shades of navy), greens (with yellowish tints to them), purple (fuschias tend to have a red base rather than blue). Does this make sense?
Of course gold looks great with warm, vibrant jewel tones like coral, red, bright pink, intense yellows (don't want to be too close in shade to the gold) and neutrals such as brown, black and cream.
Do you have a photo of your new sandals? I'd love to see them!